摘要: |
The state of New Jersey has twenty-one counties, and is located between two major cities, Philadelphia and New York City. There are three Metropolitan Planning Organizations (MPOs) in the state: the North Jersey Transportation Planning Agency (NJTPA), the Delaware Valley Regional Planning Commission (DVRPC), and the South Jersey Transportation Planning Organization (SJTPO). The NJTPA region consists of the 13 northern New Jersey counties, and is a bridge crossing away from New York City. It is heavily influenced by the City. The DVPRC region consists of four New Jersey counties and five Pennsylvania counties including the City of Philadelphia. The SJTPO region covers the remaining four counties and includes Atlantic City. This region includes most of the New Jersey shore/beach area, casinos and summer recreational markets. The three uniquely different MPO regions are represented by three unique transportation demand models. There are three transportation demand models corresponding to each of the MPOs. These models were originally developed to be used for regional transportation planning by the New Jersey Department of Transportation (NJDOT) and the MPOs. Later, with the passing of the 1990 Clean Air Act Amendments and the Intermodal Surface Transportation Efficiency Act of 1991, the expectations and uses for these models changed significantly. They would now be used for macro-scale and micro-scale types of analyses. New uses included support of the Transportation Improvement Programs (TIPs), State Implementation Plans (SIPs), Plan Conformity, TIP/SIP Conformity, air quality budgets, and others items. These additional demands on the models would result in greater scrutiny of the models' results and assumptions. |